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The rough sketch above shows an ox that pulls a cart up a grassy hillock, after the cart wheels got accidentally locked (and now slide on the grass, instead of rolling!). Now, the strong ox is applying 364 N parallel to the direction of motion; the cart keeps moving uphill with a constant velocity. The angle labeled φ measures 17.5◦ from the horizontal direction [dash line]. Later, the ox will take a break on the flat summit of the hillock, around point P. The average coefficients of static friction and kinetic friction for the grassy surface of this hillock are 0.43 and 0.37, respectively. (a) What is the mass of the cart? (b) Will the normal force on the cart at point P be less than, equal to, or greater than the normal force at the shown snapshot on the slope? (c) What would be the cart’s acceleration on the slope if there were two oxen, each individually exerting a pull of 364 N on the cart, along the side of the hillock?

The rough sketch above shows an ox that pulls a cart up a grassy hillock, after the cart wheels got accidentally locked (and now slide on the grass, instead of rolling!). Now, the strong ox is applying 364 N parallel to the direction of motion; the cart keeps moving uphill with a constant velocity. The angle labeled φ measures 17.5◦ from the horizontal direction [dash line]. Later, the ox will take a break on the flat summit of the hillock, around point P. The average coefficients of static friction and kinetic friction for the grassy surface of this hillock are 0.43 and 0.37, respectively. (a) What is the mass of the cart? (b) Will the normal force on the cart at point P be less than, equal to, or greater than the normal force at the shown snapshot on the slope? (c) What would be the cart’s acceleration on the slope if there were two oxen, each individually exerting a pull of 364 N on the cart, along the side of the hillock?

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 75AP: Starting at the island of Moi in an unknown archipelago, a fishing boat makes a round trip with two...
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The rough sketch above shows an ox that pulls a cart up a grassy hillock, after the cart wheels got accidentally locked (and now slide on the grass, instead of rolling!). Now, the strong ox is applying 364 N parallel to the direction of motion; the cart keeps moving uphill with a constant velocity. The angle labeled φ measures 17.5◦ from the horizontal direction [dash line]. Later, the ox will take a break on the flat summit of the hillock, around point P. The average coefficients of static friction and kinetic friction for the grassy surface of this hillock are 0.43 and 0.37, respectively. (a) What is the mass of the cart? (b) Will the normal force on the cart at point P be less than, equal to, or greater than the normal force at the shown snapshot on the slope? (c) What would be the cart’s acceleration on the slope if there were two oxen, each individually exerting a pull of 364 N on the cart, along the side of the hillock?
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